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One cubic meter (1 m³) of mono-atomic ideal gas, is initially at room temperature and atmo- spheric pressure. The mass of a single molecule is 1.34 × 10-26 kg. 1. Find the root mean square speed, vrms, Oof the molecules by equating the kinetic energy of a single molecule to its average thermal energy. 2. Knowing that the gas obeys the Maxwell speed distribution 3/2 4nv²e-2T m mu2 D(v) = (0.2) 2πkT such that D(v)dv = 1. (0.3) Find the expression of the probability (do not do the integral) that a particular molecule is moving with a speed faster than 2000m/s. 3. The gas is heated at constant pressure until it triples in volume. Calculate the increase in its entropy.

One cubic meter (1 m³) of mono-atomic ideal gas, is initially at room temperature and atmo- spheric pressure. The mass of a single molecule is 1.34 × 10-26 kg. 1. Find the root mean square speed, vrms, Oof the molecules by equating the kinetic energy of a single molecule to its average thermal energy. 2. Knowing that the gas obeys the Maxwell speed distribution 3/2 4nv²e-2T m mu2 D(v) = (0.2) 2πkT such that D(v)dv = 1. (0.3) Find the expression of the probability (do not do the integral) that a particular molecule is moving with a speed faster than 2000m/s. 3. The gas is heated at constant pressure until it triples in volume. Calculate the increase in its entropy.

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One cubic meter (1 m³) of mono-atomic ideal gas, is initially at room temperature and atmo- spheric pressure. The mass of a single molecule is 1.34 × 10-26 kg. 1. Find the root mean square speed, vrms, Oof the molecules by equating the kinetic energy of a single molecule to its average thermal energy. 2. Knowing that the gas obeys the Maxwell speed distribution 3/2 4nv²e-2T m mu2 D(v) = (0.2) 2πkT such that D(v)dv = 1. (0.3) Find the expression of the probability (do not do the integral) that a particular molecule is moving with a speed faster than 2000m/s. 3. The gas is heated at constant pressure until it triples in volume. Calculate the increase in its entropy.
Transcribed Image Text:One cubic meter (1 m³) of mono-atomic ideal gas, is initially at room temperature and atmo- spheric pressure. The mass of a single molecule is 1.34 × 10-26 kg. 1. Find the root mean square speed, vrms, Oof the molecules by equating the kinetic energy of a single molecule to its average thermal energy. 2. Knowing that the gas obeys the Maxwell speed distribution 3/2 4nv²e-2T m mu2 D(v) = (0.2) 2πkT such that D(v)dv = 1. (0.3) Find the expression of the probability (do not do the integral) that a particular molecule is moving with a speed faster than 2000m/s. 3. The gas is heated at constant pressure until it triples in volume. Calculate the increase in its entropy.
5. As we showed in the class, the total partition function of N molecules reads ZN hN N! (0.5) %D Use Z, and Equation (0.4) to find the pressure of the relativistic gas, P, as a function of V, N, T. 6. Find the total thermal energy of the relativistic gas U. Show that the relation between the pressure, total thermal energy and Volume for a relativistic gas is given by
Transcribed Image Text:5. As we showed in the class, the total partition function of N molecules reads ZN hN N! (0.5) %D Use Z, and Equation (0.4) to find the pressure of the relativistic gas, P, as a function of V, N, T. 6. Find the total thermal energy of the relativistic gas U. Show that the relation between the pressure, total thermal energy and Volume for a relativistic gas is given by
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